What are the cheapest airlines flying from Montreal to London Heathrow Airport round-trip?

Currently priced at C$ 800, Air Canada will fly you from Montreal to London Heathrow Airport and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Lufthansa and United Airlines - these airlines can fly you to your destination from C$ 835 and C$ 909, respectively. Air Canada is 23% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Montreal to London Heathrow Airport one-way?

The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as C$ 428. However, be on the lookout for offers from WestJet and Azores Airlines, as they are both options that can get you from Montreal to London Heathrow Airport for a low price.

What are the cheapest flights from Montreal to London Heathrow Airport?

Looking for the cheapest flight from Montreal to London Heathrow Airport? While on average our users pay C$ 2,193, our data indicates the cheapest price to be C$ 821. The most popular route (Montreal Pierre Elliott Trudeau Intl - London Heathrow), is priced around C$ 817.

What are the most reliable airlines from Montreal to London Heathrow Airport?

The top 3 most reliable airlines when flying from Montreal to London Heathrow Airport are Aegean Airlines (64%), Air Canada (63%) and Austrian Airlines (63%).

What are the most popular airlines that fly from Montreal to London Heathrow Airport?

The most popular airlines flying from Montreal to London Heathrow Airport are American Airlines, Air Canada and Air France. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Montreal to London Heathrow Airport?

Thursday is generally a great day to depart. Flying on this day could help you save up to 11%.

How far in advance should I book a flight from Montreal to London Heathrow Airport?

To save on the cost of your flight from Montreal to London Heathrow Airport, book at least 53 days before your planned departure. Booking around this time can save you about 18% on the cost of this flight compared to booking a flight leaving this week. We have found prices from C$ 992 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as C$ 1,210.

What is the cheapest month to fly from Montreal to London Heathrow Airport?

Flights from Montreal to London Heathrow Airport lean towards being more expensive in December. Prices are generally better when you fly from Montreal to London Heathrow Airport in September, with the cheapest ticket starting at C$ 737.

Can I find deals for flights from Montreal to Heathrow that include hotel bookings?

Yes. In addition to deals on Montreal to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Montreal to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to Heathrow.

Can I find deals for business class flights from Montreal to Heathrow?

Yes. Cheapflights offers flight deals from Montreal to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 423+ Flights from Montreal to London Heathrow Airport

The best prices from Montreal to London Heathrow are usually found in September or October, booked 76 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Montreal to Heathrow

Round-trip from	C$ 800
One-way from	C$ 423
Popular in	December
Cheapest in	September
Average price	C$ 1,019
Good round-trip deal	C$ 1,006 or less
Good one-way deal	C$ 1,024 or less

Air Canada
9/3-18/3
1 total stop
30h 25m total
Montreal to London

Search Deals

5/5
1 total stop
10h 15m total
Montreal to London

Search Deals

Highest demand for flights based on searches. 1% potential increase in price (C$ 29 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 26 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in February 2025

Search Deals

Price to beat on a round-trip flight from Montreal (YMQ) to London Heathrow.

Search Deals

Price to beat on a one-way flight from Montreal (YMQ) to London Heathrow.

Search Deals

Find flight deals from Montreal to Heathrow

Cheapest flights from Montreal to Heathrow
Explore the most affordable flight options available from Montreal to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 February 2025.

Thu 1/510:25 p.m.YUL - LHR

Nonstop6h 35mAir Canada

Sat 31/59:30 a.m.LHR - YUL

Nonstop7h 10mAir Canada

Deal found 18/2C$ 813

Thu 29/510:25 p.m.YUL - LHR

Nonstop6h 35mMultiple Airlines

Mon 2/66:50 a.m.LHR - YUL

1 stop9h 55mMultiple Airlines

Deal found 18/2C$ 821

Sat 10/510:25 p.m.YUL - LHR

Nonstop6h 35mLufthansa

Tue 27/59:30 a.m.LHR - YUL

Nonstop7h 10mLufthansa

Deal found 18/2C$ 835

Thu 1/56:00 p.m.YUL - LHR

1 stop12h 25mUnited Airlines

Sat 31/59:30 a.m.LHR - YUL

2 stops19h 29mUnited Airlines

Deal found 18/2C$ 909

Thu 13/37:35 p.m.YUL - LHR

1 stop14h 30mAustrian Airlines

Tue 18/37:25 p.m.LHR - YUL

1 stop23h 30mAustrian Airlines

Deal found 18/2C$ 928

Tue 29/45:50 p.m.YUL - LHR

2 stops22h 45mBrussels Airlines

Sat 10/56:50 a.m.LHR - YUL

1 stop9h 55mBrussels Airlines

Deal found 18/2C$ 980

Tue 4/35:15 p.m.YUL - LHR

1 stop12h 15mDelta

Wed 12/311:45 a.m.LHR - YUL

1 stop10h 25mDelta

Deal found 18/2C$ 1,027

Thu 10/410:05 p.m.YUL - LHR

Nonstop6h 40mAmerican Airlines

Sun 20/46:05 p.m.LHR - YUL

Nonstop7h 10mAmerican Airlines

Deal found 19/2C$ 1,036

Best flights from Montreal to Heathrow
Discover carefully curated flight deals from Montreal to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 19 February 2025.

Sun 9/38:15 p.m.YUL - LHR

Nonstop6h 55mAir Canada

Tue 18/37:25 p.m.LHR - YUL

1 stop23h 30mAir Canada

Deal found 19/2C$ 800

Sat 3/510:25 p.m.YUL - LHR

Nonstop6h 35mMultiple Airlines

Wed 14/56:50 a.m.LHR - YUL

1 stop9h 55mMultiple Airlines

Deal found 19/2C$ 821

Sat 10/510:25 p.m.YUL - LHR

Nonstop6h 35mLufthansa

Sun 25/59:30 a.m.LHR - YUL

Nonstop7h 10mLufthansa

Deal found 18/2C$ 835

Sat 3/56:00 p.m.YUL - LHR

1 stop12h 25mUnited Airlines

Tue 13/59:30 a.m.LHR - YUL

1 stop12h 28mUnited Airlines

Deal found 18/2C$ 909

Thu 13/37:35 p.m.YUL - LHR

1 stop14h 30mAustrian Airlines

Thu 20/36:00 a.m.LHR - YUL

1 stop12h 55mAustrian Airlines

Deal found 18/2C$ 928

Fri 16/56:55 p.m.YUL - LHR

1 stop21h 00mBrussels Airlines

Mon 19/511:05 a.m.LHR - YUL

1 stop29h 40mBrussels Airlines

Deal found 19/2C$ 960

Fri 11/410:00 p.m.YUL - LHR

Nonstop6h 40mBritish Airways

Sat 19/46:05 p.m.LHR - YUL

Nonstop7h 10mBritish Airways

Deal found 19/2C$ 997

Wed 2/410:45 p.m.YUL - LHR

1 stop11h 50mTAP AIR PORTUGAL

Wed 30/41:45 p.m.LHR - YUL

1 stop12h 00mTAP AIR PORTUGAL

Deal found 19/2C$ 1,017

Sat 8/37:05 a.m.YUL - LHR

2 stops43h 50mDelta

Thu 13/36:20 a.m.LHR - YUL

1 stop10h 55mDelta

Deal found 18/2C$ 1,033

Thu 10/410:05 p.m.YUL - LHR

Nonstop6h 40mAmerican Airlines

Thu 17/46:05 p.m.LHR - YUL

Nonstop7h 10mAmerican Airlines

Deal found 19/2C$ 1,036

Direct flights from Montreal to Heathrow
Explore direct flight options from Montreal to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 February 2025.

Thu 1/510:25 p.m.YUL - LHR

Nonstop6h 35mAir Canada

Sat 31/59:30 a.m.LHR - YUL

Nonstop7h 10mAir Canada

Deal found 18/2C$ 813

Fri 9/510:25 p.m.YUL - LHR

Nonstop6h 35mLufthansa

Tue 13/59:30 a.m.LHR - YUL

Nonstop7h 10mLufthansa

Deal found 17/2C$ 833

Sun 16/38:15 p.m.YUL - LHR

Nonstop6h 55mMultiple Airlines

Sun 23/33:00 p.m.LHR - YUL

Nonstop7h 40mMultiple Airlines

Deal found 17/2C$ 972

Sat 12/410:10 p.m.YUL - LHR

Nonstop6h 40mBritish Airways

Sat 19/46:05 p.m.LHR - YUL

Nonstop7h 10mBritish Airways

Deal found 19/2C$ 975

Wed 7/510:10 p.m.YUL - LHR

Nonstop6h 40mFinnair

Mon 12/56:05 p.m.LHR - YUL

Nonstop7h 10mFinnair

Deal found 17/2C$ 979

Sat 8/38:50 p.m.YUL - LHR

Nonstop6h 50mAmerican Airlines

Thu 20/34:30 p.m.LHR - YUL

Nonstop7h 35mAmerican Airlines

Deal found 18/2C$ 1,031

Last-minute flights from Montreal to Heathrow
Discover last-minute flight deals from Montreal to Heathrow. Data last updated 19 February 2025 and is based on user searches.

Mon 24/25:00 p.m.YUL - LHR

1 stop10h 30mMultiple Airlines

Fri 28/28:55 a.m.LHR - YUL

1 stop11h 20mMultiple Airlines

Deal found 19/2C$ 898

Mon 24/28:35 a.m.YUL - LHR

1 stop21h 15mUnited Airlines

Fri 28/28:55 a.m.LHR - YUL

2 stops18h 09mUnited Airlines

Deal found 19/2C$ 962

Mon 24/28:50 p.m.YUL - LHR

Nonstop6h 50mBritish Airways

Thu 27/34:30 p.m.LHR - YUL

Nonstop7h 35mBritish Airways

Deal found 19/2C$ 1,036

Mon 24/25:00 p.m.YUL - LHR

2 stops18h 20mSWISS

Thu 27/26:40 p.m.LHR - YUL

1 stop25h 35mSWISS

Deal found 18/2C$ 1,070

Tue 25/27:15 p.m.YUL - LHR

Nonstop6h 55mLufthansa

Wed 5/311:10 a.m.LHR - YUL

1 stop12h 10mLufthansa

Deal found 18/2C$ 973

Wed 26/212:15 p.m.YUL - LHR

1 stop13h 15mAir Canada

Sun 15/66:50 a.m.LHR - YUL

1 stop9h 55mAir Canada

Deal found 19/2C$ 869

Wed 26/28:50 p.m.YUL - LHR

Nonstop6h 50mAmerican Airlines

Tue 4/34:30 p.m.LHR - YUL

Nonstop7h 35mAmerican Airlines

Deal found 18/2C$ 1,080

Wed 26/27:45 p.m.YUL - LHR

1 stop19h 50mAustrian Airlines

Thu 6/36:00 a.m.LHR - YUL

1 stop12h 55mAustrian Airlines

Deal found 18/2C$ 1,090

Wed 26/28:50 p.m.YUL - LHR

Nonstop6h 50mFinnair

Fri 21/34:30 p.m.LHR - YUL

Nonstop7h 35mFinnair

Deal found 18/2C$ 1,193

Thu 27/25:15 p.m.YUL - LHR

1 stop12h 15mDelta

Wed 5/36:20 a.m.LHR - YUL

1 stop10h 55mDelta

Deal found 18/2C$ 1,051

Thu 27/212:49 p.m.YUL - LHR

1 stop13h 01mKLM

Thu 6/38:25 p.m.LHR - YUL

1 stop25h 45mKLM

Deal found 18/2C$ 1,398

Sun 2/36:15 p.m.YUL - LHR

1 stop12h 35mAir Canada

Thu 6/36:00 a.m.LHR - YUL

1 stop12h 55mAir Canada

Deal found 18/2C$ 848

One-way flights from Montreal to Heathrow
Search for one-way flight options from Montreal to Heathrow. Find affordable one-way fares based on user searches. Data last updated 19 February 2025.

Mon 5/511:00 p.m.YUL - LHR

1 stop10h 15mMultiple Airlines

Deal found 18/2C$ 423

Wed 19/310:45 p.m.YUL - LHR

1 stop14h 45mTAP AIR PORTUGAL

Deal found 19/2C$ 428

Mon 3/36:45 a.m.YUL - LHR

2 stops25h 05mWestJet

Deal found 18/2C$ 534

Mon 31/39:30 p.m.YUL - LHR

2 stops16h 20mAzores Airlines

Deal found 18/2C$ 607

Fri 14/39:35 p.m.YUL - LHR

1 stop15h 25mRoyal Air Maroc

Deal found 18/2C$ 673

Tue 25/210:30 a.m.YUL - LHR

2 stops17h 00mAir Canada

Deal found 19/2C$ 698

Fri 11/47:45 p.m.YUL - LHR

1 stop21h 40mTurkish Airlines

Deal found 18/2C$ 841

Tue 1/410:20 p.m.YUL - LHR

Nonstop6h 40mLufthansa

Deal found 19/2C$ 1,007

Tue 25/211:20 a.m.YUL - LHR

2 stops15h 35mDelta

Deal found 19/2C$ 1,038

Sat 1/36:35 p.m.YUL - LHR

1 stop22h 05mAustrian Airlines

Deal found 19/2C$ 1,138

Fri 21/39:50 p.m.YUL - LHR

Nonstop6h 50mFinnair

Deal found 19/2C$ 1,179

Sat 1/36:30 p.m.YUL - LHR

2 stops30h 25mUnited Airlines

Deal found 19/2C$ 1,537

Find flights from Montreal to Heathrow within your budget

Fly from

Fly to

Route

Depart

Return

Price

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 1/5

10:25 p.m.-10:00 a.m.

Nonstop6h 35m

London Heathrow

Sat 31/5

9:30 a.m.-11:40 a.m.

Nonstop7h 10m

C$ 813

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 29/5

10:25 p.m.-10:00 a.m.

Nonstop6h 35m

London Heathrow

Mon 16/6

6:50 a.m.-11:45 a.m.

1 stop9h 55m

C$ 821

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sat 10/5

10:25 p.m.-10:00 a.m.

Nonstop6h 35m

London Heathrow

Mon 26/5

9:30 a.m.-11:40 a.m.

Nonstop7h 10m

C$ 835

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 1/5

6:00 p.m.-11:25 a.m.

1 stop12h 25m

London Heathrow

Sat 31/5

9:30 a.m.-11:59 p.m.

2 stops19h 29m

C$ 909

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 9/3

7:35 p.m.-2:05 p.m.

1 stop14h 30m

London Heathrow

Tue 18/3

7:25 p.m.-2:55 p.m.

1 stop23h 30m

C$ 921

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 16/5

6:55 p.m.-8:55 p.m.

1 stop21h 00m

London Heathrow

Mon 19/5

5:50 p.m.-11:45 a.m.

1 stop22h 55m

C$ 960

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 4/3

5:15 p.m.-10:30 a.m.

1 stop12h 15m

London Heathrow

Wed 12/3

11:45 a.m.-6:10 p.m.

1 stop10h 25m

C$ 1,027

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 10/4

10:05 p.m.-9:45 a.m.

Nonstop6h 40m

London Heathrow

Sun 20/4

6:05 p.m.-8:15 p.m.

Nonstop7h 10m

C$ 1,036

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 5/5

11:00 p.m.-2:15 p.m.

1 stop10h 15m

C$ 423

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 23/3

10:45 p.m.-9:35 p.m.

1 stop18h 50m

C$ 429

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/2

Showing 1-10 of 18 results

Best time to book a flight from Montreal to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Montreal with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Montreal to Heathrow

Get recent, data-driven insights about flights from Montreal to Heathrow including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Montreal to London Heathrow Airport?

The price you pay for your flight from Montreal to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Montreal to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Montreal to London Heathrow Airport (average of C$ 560). Flying from Montreal to London Heathrow Airport in July is currently the most expensive (average of C$ 874). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YMQ to LHR?

When flying from Montreal to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 35% versus a flight in the evening.

What is the cheapest day to fly from Montreal to London Heathrow Airport?

Travelers seeking maximum savings on their Montreal to London Heathrow Airport flight should consider departing on Sunday mornings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Montreal to London Heathrow Airport

The most flights from YMQ to LHR are scheduled on a Monday (11 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Peruse reviews from past customers who have flown with Delta, Finnair and Azores Airlines from Montreal to London to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,236 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

8,236 reviews

Delta

8.0

Very good

8,236 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.6

Good

1,274 reviews

Delta

8.0

Very good

8,236 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Azores Airlines

7.6

Good

62 reviews

Delta

8.0

Very good

8,236 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Austrian Airlines

7.6

Good

774 reviews

Delta

8.0

Very good

8,236 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,771 reviews

Delta

8.0

Very good

8,236 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines flying from Montreal to London Heathrow Airport round-trip?
Currently priced at C$ 800, Air Canada will fly you from Montreal to London Heathrow Airport and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Lufthansa and United Airlines - these airlines can fly you to your destination from C$ 835 and C$ 909, respectively. Air Canada is 23% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Montreal to London Heathrow Airport one-way?
The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as C$ 428. However, be on the lookout for offers from WestJet and Azores Airlines, as they are both options that can get you from Montreal to London Heathrow Airport for a low price.
What are the most reliable airlines from Montreal to London Heathrow Airport?
The top 3 most reliable airlines when flying from Montreal to London Heathrow Airport are Aegean Airlines (64%), Air Canada (63%) and Austrian Airlines (63%).
What are the cheapest flights from Montreal to London Heathrow Airport?
Looking for the cheapest flight from Montreal to London Heathrow Airport? While on average our users pay C$ 2,193, our data indicates the cheapest price to be C$ 821. The most popular route (Montreal Pierre Elliott Trudeau Intl - London Heathrow), is priced around C$ 817.
Can I find deals for flights from Montreal to Heathrow that include hotel bookings?
Yes. In addition to deals on Montreal to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Montreal to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to Heathrow.
Can I find deals for business class flights from Montreal to Heathrow?
Yes. Cheapflights offers flight deals from Montreal to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Montreal to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Montreal to London Heathrow Airport (average of C$ 560). Flying from Montreal to London Heathrow Airport in July is currently the most expensive (average of C$ 874). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Brentford

Hounslow

Slough

Luton

Milton Keynes

Romford

Watford

Bromley

Bedford

Southall

Browse thousands of different options on Cheapflights for your next trip

Top 9 airlines flying from Montreal to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Finnair	CheapestC$ 584	AverageC$ 1,036	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Air France	CheapestC$ 626	AverageC$ 909	FlexibilityNo cancel fee	On-time77%	Search Air France flights
TAP AIR PORTUGAL	CheapestC$ 636	AverageC$ 700	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Air Transat	CheapestC$ 666	AverageC$ 924	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Virgin Atlantic	CheapestC$ 769	AverageC$ 886	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Air Canada	CheapestC$ 795	AverageC$ 1,044	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Lufthansa	CheapestC$ 796	AverageC$ 1,035	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
British Airways	CheapestC$ 834	AverageC$ 1,104	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
American Airlines	CheapestC$ 1,000	AverageC$ 1,179	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Montreal to Heathrow?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Montreal to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Montreal to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Montreal.

Can Cheapflights find flights from Montreal to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Montreal? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Cheap flights from Montreal to London Heathrow Airport from C$ 423

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel.

The best prices from Montreal to London Heathrow are usually found in September or October, booked 76 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Montreal to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Montreal to Heathrow

Cheapest flights from Montreal to HeathrowExplore the most affordable flight options available from Montreal to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 February 2025.

Explore the most affordable flight options available from Montreal to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 February 2025.

Find flights from Montreal to Heathrow within your budget

Best time to book a flight from Montreal to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Montreal with our price prediction graph.

Travel insights for flights from Montreal to Heathrow

Get recent, data-driven insights about flights from Montreal to Heathrow including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Montreal to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Montreal to Heathrow. Price data was last updated on 14 February 2025.

What is the cheapest month to book a flight from Montreal to London Heathrow Airport?

What is the cheapest time of day to fly from YMQ to LHR?

Find hourly flight availability from Montreal to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 February 2025.

What is the cheapest day to fly from Montreal to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Montreal to Heathrow. Price data was last updated on 15 September 2024.

Weekly flight availability from Montreal to London Heathrow Airport

Explore weekly flight availability from Montreal to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 19 February 2025.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

Reviews of airlines servicing Heathrow

Related info for your journey

Find useful and relevant information for your journey from Montreal to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Montreal to London Heathrow Airport round-trip?

What are the cheapest airlines to fly from Montreal to London Heathrow Airport one-way?

What are the most reliable airlines from Montreal to London Heathrow Airport?

What are the cheapest flights from Montreal to London Heathrow Airport?

Can I find deals for flights from Montreal to Heathrow that include hotel bookings?

How can I find direct flights from Montreal to Heathrow?

Can I find deals for business class flights from Montreal to Heathrow?

What is the cheapest month to book a flight from Montreal to London Heathrow Airport?

Travelling to a place near Montreal?

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Fly from Montreal to Heathrow on these airlines

Choose from the following airlines for your flight from Montreal to Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 19 February 2025.

Top 9 airlines flying from Montreal to Heathrow

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Cheapest flights from Montreal to Heathrow
Explore the most affordable flight options available from Montreal to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 February 2025.